Answer:
1s2 2s2 2p6 3s2 3p6 3d6 4s2
Explanation:
Most plants are called autotrophs they make their own food
B) land cools off much faster than water (creating a air region of high density above land and lower density above sea)
<span>Density is a value for
mass, such as kg, divided by a value for volume, such as m3. Density is a
physical property of a substance that represents the mass of that substance per
unit volume. We calculate as follows:
PV = nRT
PV = mRT/ Molar mass
m/V = P(molar mass)/RT
Density = P(molar mass)/RT
Density = 2.0 ( 30.97 ) / 0.08206 ( 20 + 273.15) = 2.57 g/L <----First option</span>
The answer would be , a Chemical change!
